vector.space: Computes properties for the vowel space constructed by the...

In FredrikKarlssonSpeech/articulated: This package adds

Computes properties for the vowel space constructed by the supplied F1 and F2 formant values.

Description

Computes properties for the vowel space constructed by the supplied F1 and F2 formant values.

Usage

vector.space(
  f1,
  f2,
  na.rm = TRUE,
  output = c("center", "norms", "angles", "whichvowelcorner", "corners", "meanvectors"),
  center = NULL,
  center.method = "wcentroid",
  minimum.no.vectors = 3
)

Arguments

f1	A vector of F1 values.
f2	A vector of F2 values.
na.rm	Boolean value specifying whether missing values should be removed. Defaults to TRUE.
output	List of vowel properties to be returned. Could be one or many of "center","norms","angles","whichvowelcorner","corners","meanvectors","areas" or "vsa". All values are returned by default.
center	A vector (F2,F1) specifying the vowel space center to be used. If NULL, the center will be calculated using the vowelspace.center function.
center.method	The method to use in the calculation of vowel space center. See vowelspace.center for details.
minimum.no.vectors	The minimum number of vectors needed for a mean vector to be computed.

Value

A list containing the properties specified by the "output" argument.Could be one or many of

F1 center	Computed vowel space center vowel's F_1 values
F2 center	Computed vowel space center vowel's F_2 values
Vector norms	Length of all supplied vowel vectors
Vector angles	Angles of all supplied vowel vectors
Which vowel corner	A factor indicating in which corner of the vowel space each vowel is located.
Corner vowels	Data frame of corner vowels F_1 and F_2 values
Mean vectors	Data frame of corner vowels as vector norms and angles
Triangle areas	Individual triangle areas
VSA(n)	Vowel space area. The 'n' indicates the number of corners in the vowel space.

Author(s)

Fredrik Karlsson

References

\insertRef

Karlsson:2012vbarticulated

Examples

vsdata <- data.frame(F1=c(rnorm(100,mean=300,sd=100),rnorm(100,mean=600,sd=100),rnorm(100,mean=600,sd=100),rnorm(100,mean=300,sd=100)),F2=c(rnorm(100,mean=2200,sd=200),rnorm(100,mean=1700,sd=200),rnorm(100,mean=1000,sd=200),rnorm(100,mean=900,sd=200)),Vowel=rep(c("i","ae","a","u"),c(100,100,100,100)))
outvs <- vector.space(vsdata$F1,vsdata$F2)
summary(outvs)

FredrikKarlssonSpeech/articulated documentation built on July 20, 2023, 8:20 a.m.